diff --git a/noxfile.py b/noxfile.py
index a2eefbb..7949a4e 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -86,7 +86,7 @@ def default(session):
     )
 
 
-@nox.session(python=["2.7", "3.5", "3.6", "3.7"])
+@nox.session(python=["2.7", "3.5", "3.6", "3.7", "3.8"])
 def unit(session):
     """Run the unit test suite."""
     default(session)
diff --git a/synth.metadata b/synth.metadata
index 7662a87..9ea39f2 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,5 +1,5 @@
 {
-  "updateTime": "2019-11-19T13:30:31.987393Z",
+  "updateTime": "2019-12-07T13:25:40.740510Z",
   "sources": [
     {
       "generator": {
@@ -12,8 +12,8 @@
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "d8dd7fe8d5304f7bd1c52207703d7f27d5328c5a",
-        "internalRef": "281088257"
+        "sha": "a4adac3a12aca6e3a792c9c35ee850435fe7cf7e",
+        "internalRef": "284277770"
       }
     },
     {